Windings for dynamoelectric machines



Aug. 24, 1954 w, FRY

WINDINGS FOR DYNAMOELECTRIC MACHINES Filed Aug. 18, 1952 I Patented Aug. 24, 1954 WINDIN GS FOR DYNAMOELECTRIC MACHINES William Lawrence Fry, Birmingham, England,

assignor to Joseph Birmingham, Englan Application August 18, 1952, Serial No.

Claims priority, applica Lamas (Industries) Limited,

304,917 tion Great Britain August 27, 195 1 Claim. (Cl. 310194) In known types of dynamo-electric machines (generators or motors) having windings mounton salient poles around the interior of the stator, the windings are interconnected alter- Hitherto difficulty has been experienced, in some forms of small machines, in satisfactorily accommodating and securing the lengths of connecting wire between the windings, and the object of the present invention is to enable this difficulty to be overcome in a simple manner.

The invention comprises a bobbin adapted to carry a winding and also adapted for the attachment thereto of a length of connecting Wire extending from the winding of an adjacent bobbin.

In the accompanying drawings:

Figure 1 illustrates one arrangement of pole pieces and windings for which the invention is required.

Figure 2 is a diagrammatic view illustrating the mode of interconnecting the windings on alternate pole pieces.

Figure 3 is a front elevation and Figure 4 a side elevation of a bobbin constructed in accordance with the invention.

In the application A. C.

to receive a part between the windings on the adjacent bobbins.

When mounting the Wound bobbins in position at Figure 2, and starting at the upper end, the

connecting wire 9 forms part of or is attached to the a-d acent winding. On leaving this winding the wire is placed in and the edge parts of the groove are united by heat.

By this invention the lengths of wires extending between alternate windings can be accommodated sides of the bobbin.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 956,553 Webster et a1. May 3, 1910 2,412,254 Edelman Dec. 10, 1946 FOREIGN PATENTS Number Country Date 181,893 Switzerland Apr. 1, 1936 

